"The Senate shall have the sole Power to try all Impeachments. When sitting for that Purpose, they shall be on Oath or Affirmation. When the President of the United States is tried, the Chief Justice shall preside: And no Person shall be convicted without the Concurrence of two thirds of the Members present."
-Article 1 Section 3 Clause 6 of the US Constitution
If Senator Leahy is presiding then this isn't an impeachment trial.
Just a big shamwow trying to wipe up any remaining support for a real president that follows the constitution. They don't want any spots of freedom messing up there communist paint job.